| 词条 | Osorno–Llanquihue Basin |
| 释义 |
| name = Osorno–Llanquihue Basin | other_name = Cuenca de Osorno-Llanquihue | named_for = Osorno and Llanquihue Lake | image = SRTM-W74.00E71.50S41.00N40.00.Osorno.png | image_size = | image_alt = | image_caption = SRTM map of the topography of the northern part of Osorno–Llanquihue Basin. The basin does largely correspond with the topographic low of the Chilean Central Valley. | pushpin_map = Chile | pushpin_map_size = | pushpin_map_alt = | pushpin_map_caption = | pushpin_relief = 1 | pushpin_mark = | pushpin_mark_size = | pushpin_label = | pushpin_label_position = | map_image = | map_size = | map_alt = | map_caption = | column_image = | column_size = | column_alt = | column_caption = | section_image = | section_size = | section_alt = | section_caption = | coordinates = {{coord|40.712124|S|73.109218|W|display=inline,title}} | location = Southwestern South America | region = | country = {{CHL}} | state = Los Ríos Region Los Lagos Region | cities = | onoffshore = Southern tip is offshore | boundaries = Chilean Coast Range (W) Andes (E) | partof = | seas = Eastern Pacific Ocean | rivers = Bueno, Negro, Pilmaiquén, Rahue, Damas | lakes = Llanquihue, Laguna Las Ortigas and the westernmost portions of Rupanco, Puyehue and Ranco | area = | basin_type = Forearc basin | orogeny = Andean | age = Oligocene-Pleistocene | stratigraphy = | fields = Chilean coal | faults = | footnotes = | embed = }}{{short description|Sedimentary basin in Chile}} The Osorno–Llanquihue Basin ({{lang-es|Cuenca Osorno-Llanquihue}}) is a sedimentary basin located in south-central Chile in the forearc region of the Andes. From north to south the basin spans and area from Catamutún to Reloncaví Sound (40–42° S).[1] The deepest part of the basin lie to the east.[2] The lower levels of the basin are occupied by coal-bearing Cheuquemó Formation among other units while the Miocene-aged marine Santo Domingo Formation makes up much of the upper stratigraphy.[2] The uppermost levels are made of sediments of Quaternary age of glacial, glaci-fluvial, glaci-lacustrine and volcanic character.[3] The thickness of Quaternary sediments is greater to the south reaching almost 1,300 m in Puerto Montt.[3] Sediments in the western part of the basin are roughly estimated to have reached 70 °C during burial and diagenesis.[4] References1. ^Elgueta et al. 2000, p. 7. 2. ^1 Elgueta et al. 2000, p. 10. 3. ^1 Elgueta et al. 2000, pp. 13–14. 4. ^{{cite journal |last1=Kelm |first1=Ursula |last2=Cisternas |first2=María E.|last3=Helle |first3=Sonia|last4=Méndez |first4=David |date=1994 |title=Diagenetic character of the Tertiary basin between Los Angeles and Osorno, southern Chile |url=http://www.andeangeology.cl/index.php/revista1/article/view/V21n2-a07 |journal=Revista Geológica de Chile |volume=21 |issue=2 |pages=241–252 |doi=10.5027/andgeoV21n2-a07 |access-date= }}
| last1 = Elgueta | first1 = Sara | last2 = McDonough | first2 = Michael | last3 = Le Roux | first3 = Jacobus | last4 = Urqueta | first4 = Esteban | last5 = Duhart | first5 = Paul | lastauthoramp = yes | title = Estratigrafía y sedimentología de las cuencas Terciarias de la Región de Los Lagos (39-41°30'S) | publisher = Servicio Nacional de Geología y Minería | place = Santiago, Chile | ISSN = 0020-3939 | year = 2000 | language = Spanish }}{{Geology of Chile}}{{Chile-geo-stub}} 4 : Forearc basins|Geology of Los Lagos Region|Geology of Los Ríos Region|Sedimentary basins of Chile |
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